A person somewhere in the game will tell you how happy your Pokemon is if you show it to that person also if you use an item on your Pokemon the closer they get to the screen the more happy they are.
Go to Verdanturf town. walk to the last house down to the left. Inside that house is a lady, she will tell you. Hope I could help!
If you have the happiness App. for your pokewatch thing... you can see how much your Pokemon loves you (how happy they are).
you talk to your Pokemon if they are first in your party and you can see by their expression weather they are happy with you or not. hope this helped :)
You can get the Happiness Checker Poketch App by talking to a woman in Eterna City's Pokemon Center. This app allows you to see how much your Pokemon likes you.
You can make it happy by treating it to spa.
You can make it happy by training it a whole lot. usually it takes a Pokemon 20-30 LVs to be fully happy.
If you are talking about how to see how happy it is you have to have the poketch app Friendship checker which you can get from a girl in the Eterna city Pokemon center if you haven't gotten it already. The app looks like a page with Pokemon walking around and then if you hold the styler onto one of the Pokemon hearts will appear or not depending on how happy it is. There can be no heart, 1 heart, 2 hearts, or 2 big hearts.
you have to run around with it lots. also battle with it. those two things make Pokemon happy.
Buy him a pokemon game
there is a lady in goldenrod city (in the house by the bike store) who tells you the happniess of your first Pokemon
By Making It Happy Guest I Know All About Pokemon Platinum Diamon And Pearl. See Ya
The way I do it is by giving the Pokemon you want happy a sooth bell, this will make the Pokemon grow happy fast. Then every day give the Pokemon a message at Veliston (spelling?). Also make sure that it's the first Pokemon in your party and never put in the PC boxes.
You talk to it